The Mariners saved their season after the All-Star break

2023 MLB teams with the largest gains in playoff and World Series odds since the All-Star break

Playoff odds are based on an average of the forecast models found at Baseball-Reference and FanGraphs. Numbers may not add up perfectly in each case due to rounding.
Chart: Neil Paine/The MessengerSource: FanGraphs, Baseball-ReferenceCreated with Datawrapper